Vibrator mount



May 6, 1958 A. A. DE LlssE VIBRATOR MOUNT Filed Nov. 2, 1954 I N V ENTOR. 4A/mow f4. fZ/ssf Arme/VW 'VIBRATOR MOUNT Dubilier ElectricCorporation, South Planiield, -N. J., a corporation of Delaware,iApplicatiomNovemhenLf 1954,.Serial.No.`z 466,273

3 Claims. Ik(CLl 200-5-168) @This:invention'relates tovibratorassemblies and particularly to a mounting for such .typeassemblies .wherein .ani undesired transmission `of mechanical and.acoustical .vibrations .is` greatlyl reduced.

fElectrical vibrator .i assemblies arewell-knownv in the art vand arecommonly yused in powery :supplies .for .battery operated radiosandother electrical. apparatus. utilizing i a low. voltage .directcurrentsourcefastheprimary source .of operatingpower. Units of this.general type employ. a

' vibrator. reed than .periodically interrupts. 'thefidirectcurf-:rent-producedvby tlief low `voltage .source.in.,.a.-,mannerY:welll` known. ins the art. However, the necessary f .operaareoftentimes ytransmitted through .the :vibrator assembly mounti'fto theassociated components lof the-apparatus in which the *vibrator assemblyis incorporated. wThe. ,pres- "This invention'may bebrieilydescribedasan improved mount for .electrical vibrator ,assemblies,.wh'ereby v `unt desired transmission ofv mechanical andiacousticalvibra- 'ltons resultingtherefroin is.y greatly reduced.

The-object-of this -inventionis theiprovision of an irn- J`proved mountfor electrical vibrator i assemblies.

Otherobjects and advantages ,ofy :the inventionwill be inadeapparent inthek followingrdescription and, claims e `and illustrated 1in l theaccompanying drawings which disclose, by Way of example, theprinciples..underlying the invention and the presently preferredembodiments of the vibrator assemblyrmiount incorporating those principles.

,Referring to the drawings: i

{'Fg. l, is a side elevational vieu/,f partially inl section, of avibrator assembly and mountvtherefor embodying the lprinciples of thisinvention;

Fig. 2 is a plan view of the unit illustrated in Fig. l as viewed fromthe line 2-2 in Fig. l;

Fig. 3 is a section ltaken on the line 3 3 of Fig. 2 and showing onlythe vibrator assembly mount; and

Fig. 4 is a sectional view of an alternative construction for a vibratorassembly mount.

Referring to the drawings and particularly to Figs. l through 3, thereis shown a vibrator assembly employing the novel mount that forms thesubject matter of this invention. The vibrator unit proper forms no partof this invention and any suitable type of vibrator unit may be used.For the puiposes of illustration, however, the vibrator unit may includean elongated frame niember having one end 12 thereof deformed into aU-shape with the downwardly dependent arm portion 1 3 thereof serving asan armature for and supporting a coil 14. Disposed beneath the end ofthe dependent arm portion 13 is a vibrating reed 16 having a pair ofcontact members 18 and 20 mounted thereon and adapted to engage, upondisplacement of the reed 16, fixed contact members 22 and 24,respectively. The frame 10, reed United States Patent tion ofthefvibra'tingvmemberitherein results infundesirable vibratory effects,I.bothl lmechanical.` and; acoustical, which Hce f16,- andcontactmembers 18, 20, 22 and--24` are conventionally, mounted together with#suitable interposed; in-

sulating vmembers to for-m a base member generally designated as 26. Theentirevibrator unit is adaptedf to beienclosed in the novel Amountgenerallyfdesignated'30.

The configuration of the novel mount-30 isbest -i1lus trated in Fig. 3.As there -shown,the mount 30 is adapted to be molded in one piece ofsuitableresilient.material,

vpreferably a rubberofv high purity, tolform anl integral unit of theshape shown. As-illustrated,-tlie-mount1-30 Iincludes a cylindricalvibrator unit-receiving sleeve-329i `substantially uniform diametersized-to-'c1osely encompass the entire vibratorunitfand-to-position-the-san1e therewithin as bestshownin-Fig.v 1.Theupperfendofjthe vibrator unit `receiving sleeve-32 is Iprovidedwithan integral and horizontally disposed partialcap 34 sized to coverthe horizontally disposedportion toffthe U-sliaped end of the framemember10 and thereby vouter skirt portion 42 extendsl beyond'the end ofthe-inner skirt portion 38 and terminates in aL horizontallydisposediiange portion 44 molded aroundy andy enclosing a pressure ring 46.

In-assembly, the vibrator unit receiving sleevei32 is expanded and thevibrator unit proper is ins erted'ther ein so-that the upper surface-36of 'theframe member" 10 abuts the horizontally disposed cap"34 andthebasesection -26 is contained Withinthe' lower portions of the dependentinner ski-rt. .fThe sleeve 32 `is thenpermitted to contract around andthereby firmly engage the vibrator unitfdisposed therein. Thefmountllfands the enclosed `vibrator unit are then insertedin a conve ntionalfmetallic vibrator can 50 with the flanged portion 44 containingthe pressure ring'46beingidisposed immediately beneath an `inwardlydirected beadf52. A terminal'contairiing base-plate 54 having theterrninalsithereof connected by suitable leads tothe vibrator elements'isv then placed under pressuieagainst the underside of the anged, portion 44 and is secured in position by rolling thedependent edge S6 ofthe can thereover asjillustrated in 'Fig.x1. WThe pressure ringj46disposed withinthef'anged"portion44 serves to prevent the mount'tlfrombeing-displaced 'up- Wardly past theV bead 52 by the action of the baseplate 54 during assembly of the unit, and the disposition of the ring 46intermediate the bead 52 and the base plate 54 after assembly serves toposition the mount 30 containing the vibrator unit within the can 50.

In the assembled unit, as illustrated in Fig. l, the entire vibratorunit proper is supported by and within the vibrator unit containingsleeve 32 and is thereby suspended freely within the can 50. The onlypath of contact with the can 50, apart from the leads, occurs unit andposition the same therewithin.

can 50 and thereby results in a vibrator assembly of improved quality.

Fig. 4 illustrates another configuration for a vibrator mount adapted tobe molded in one piece from suitable resilient material, preferably arubber of high purity.

vIn this embodiment the mount includes a cylindrical vibrator unitreceiving sleeve 60 of substantially uniform diameter sized to closelyencompass the entire vibrator The upper end of the vibrator unitreceiving sleeve 60 is provided with an integral and horizontallydisposed partial cap 62 sized to cover the horizontally disposed portion36 of the U-shaped end of the frame member I0. The lower portion of thereceiving sleeve 60 terminates in a dependent inner skirt portion 64adapted to encompass the base section 26 of the vibrator unit proper.The mid portion 66 of the sleeve 60 is of increased thickness so as toprovide a supporting structure integral with the sleeve 6i) for anelongated dependent outer skirt portion 68. The dependent outer skirtportion 63 extends beyond the end of the inner skirt portion 64 andterminates in a horizontally disposed flange portion 70 molded aroundand enclosing a pressure ring 72. The mid section 66 of increasedthickness also serves to provide a support for a second integral andupwardly extending skirt portion 74 terminating in a anged portion 76.

In assembly, the vibrator unit receiving sleeve 60 is vexpanded and thevibrator unit proper is inserted therein so that the upper surface 36 ofthe frame member 10 abuts the horizontally disposed cap 62 and the basesection 26 is contained within the lower portions of the dependent innerskirt 64. The sleeve 60 is then permitted to contract around and therebyfirmly engage the vibrator unit disposed therein. The mount and theenclosed vibrator unit is then inserted in a conventional metallicvibrator can and is assembled in a manner similar to that describedabove in conjunction with the embodiment of Figs. 1 to 3.

In the assembled unit, the ilange 76 of the outer skirt portion 74 isadapted to peripherally engage the can adjacent the junction of the topand side walls thereof and to thereby provide an additional support forthe assembled unit. In this mount the entire vibrator unit proper issupported by and within the vibrator unit containing sleeve 60 and isthereby suspended freely within the can 50 and is positioned againstsidewise displacement thereof by the engagement of the flanges 70 and 76of the outer skirt portions 68 and 74 respectively within the metalliccan.

In accordance with the provisions of the patent statutes, I have hereindescribed the principle of operation of this invention, together withthe elements which I now consider to constitute a workable embodimentthereof, but I desire to have it understood that the structure disclosedis only illustrative and the invention can be carried out by othermeans. Also, while it is designed to use the various features andelements in the combinations and relations described, some of these maybe altered and modiied without interfering with the more general resultsoutlined.

Having thus described my invention I claim:

l. A one piece moldable mount for vibrator units formed of resilientmaterial comprising a vibrator unit receiving sleeve sized to closelyand compressively contain a vibrator unit therewithin, a dependent outerskirt portion integral with said sleeve adjacent the mid length thereofand extending beyond the end of said sleeve, and an outwardly extendingflange portion on the dependent end of said outer skirt portion forpositioning said vibrator containing mount in a completed vibratorassembly with a vibrator unit contained within said sleeve freelysuspended therewithin. j

2. A one piece moldable mount for vibrator units formed of resilientmaterial comprising a vibrator unit receiving sleeve sized to closelyand compressively contain a vibrator unit therewithin and having avibrator unit positioning cap at one end thereof and a dependent 4skirtportion at the other end thereof, a dependent outer skirt portionintegral with said sleeve adjacent the mid length thereof and extendingbeyond the extremity of said dependent skirt portion of said sleeve, andan outwardly extending flange portion on the dependent end of said outerskirt portion for positioning said vibrator unit containing mount in acompleted vibrator assembly with the vibrator unit freely supportedtherewithin.

3. A one piece moldable mount for vibrator units formed of resilientmaterial comprising a vibratorv unit receiving sleeve sized to closelyand compressively contain a vibrator unit therewithin and having avibrator unit positioning cap at one end thereof and a dependent skirtportion at the other end thereof, a first dependent outer skirt portionintegral with said sleeve adjacent the mid length thereof and extendingbeyond the extremity of said dependent skirt portion of said sleeve, asecond outer skirt portion integral with said sleeve adjacent the midlength thereof and extending beyond said partial cap, and an outwardlyextending flange portion on the dependent end of said first outer skirtportion for positioning said vibrator containing mount in a completedvibrator assembly.

References Cited in the file of this patent UNITED STATES PATENTS

